Actions
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step. The quadriceps, specifically the vastus medialis, plays the important role of stabilizing the patella and the knee joint during gait.
Read more about this topic: Quadriceps Femoris Muscle
Famous quotes containing the word actions:
“As soon as we exceed average human goodness by even a single step, our actions arouse suspicion. Virtue stands steadily “in the middle.””
—Friedrich Nietzsche (1844–1900)
“Only the actions of the just
Smell sweet and blossom in their dust.”
—James Shirley (1596–1666)
“But they who are unconcerned about the consequences of their actions are not therefore unconcerned about their actions.”
—Henry David Thoreau (1817–1862)